# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, lib, inputs, ... }:
let
  nvidia-offload = pkgs.writeShellScriptBin "nvidia-offload" ''
    export __NV_PRIME_RENDER_OFFLOAD=1
    export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
    export __GLX_VENDOR_LIBRARY_NAME=nvidia
    export __VK_LAYER_NV_optimus=NVIDIA_only
    export LIBVA_DRIVER_NAME=nvidia
    export GBM_BACKEND=nvidia-drm

    exec "$@"
  '';
  run-hyprland = pkgs.writeShellScriptBin "run-hyprland" ''
    export _JAVA_AWT_WM_NONREPARENTING=1
    export XCURSOR_SIZE=32

    export CLUTTER_BACKEND=wayland
    export XDG_SESSION_TYPE=wayland
    export QT_WAYLAND_DISABLE_WINDOWDECORATION=1
    export MOZ_ENABLE_WAYLAND=1
    export WLR_NO_HARDWARE_CURSORS=1
    export WLR_BACKEND=vulkan
    export QT_QPA_PLATFORM=wayland
    export GDK_BACKEND=wayland
    export SDL_VIDEODRIVER=wayland

    exec Hyprland
  '';
in {
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix
    ./rescue-boot.nix
    ./networking.nix
  ];

  # home-manager
  home-manager.useGlobalPkgs = true;
  home-manager.useUserPackages = true;
  home-manager.users.victor = import ./home;
  home-manager.extraSpecialArgs = { inherit inputs; };

  security.pam.services.swaylock = { };

  security.sudo.wheelNeedsPassword = true;

  fonts = {
    fonts = with pkgs; [
      material-design-icons
      noto-fonts
      noto-fonts-cjk
      noto-fonts-emoji
      dejavu_fonts
      (nerdfonts.override {
        fonts =
          [ "DejaVuSansMono" "Ubuntu" "DroidSansMono" "NerdFontsSymbolsOnly" ];
      })
    ];

    enableDefaultFonts = false;

    fontconfig = {
      defaultFonts = {
        monospace = [ "DejaVuSansMono Nerd Font" "Noto Color Emoji" ];
        sansSerif =
          [ "DejaVu Sans" "DejaVuSansMono Nerd Font" "Noto Color Emoji" ];
        serif =
          [ "DejaVu Serif" "DejaVuSansMono Nerd Font" "Noto Color Emoji" ];
        emoji = [ "Noto Color Emoji" ];
      };
    };
  };

  # Bootloader.
  # boot.initrd.systemd.enable = true; # Experimental
  boot = {
    kernelPackages = pkgs.linuxPackages_latest;
    loader.systemd-boot.editor = false;
    loader.systemd-boot.enable = true;
    # loader.systemd-boot.configurationLimit = 6;
    loader.efi.canTouchEfiVariables = true;
    loader.efi.efiSysMountPoint = "/boot/efi";

    kernel.sysctl = { "fs.inotify.max_user_watches" = 524288; };
  };

  services.gnome.gnome-keyring.enable = true;

  fileSystems."/".options = [ "compress=zstd" ];
  fileSystems."/home".options = [ "compress=zstd" ];
  fileSystems."/nix".options = [ "compress=zstd" "noatime" ];

  # Filesystem dedup
  # services.beesd.filesystems = {
  #  root = {
  #    spec = "LABEL=nixos";
  #    hashTableSizeMB = 256;
  #    verbosity = "crit";
  #    extraOptions = [ "--loadavg-target" "2.0" ];
  #  };
  # };

  # Select internationalisation properties.
  i18n.defaultLocale = "en_GB.utf8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "nl_NL.UTF-8";
    LC_IDENTIFICATION = "nl_NL.UTF-8";
    LC_MEASUREMENT = "nl_NL.UTF-8";
    LC_MONETARY = "nl_NL.UTF-8";
    LC_NAME = "nl_NL.UTF-8";
    LC_NUMERIC = "nl_NL.UTF-8";
    LC_PAPER = "nl_NL.UTF-8";
    LC_TELEPHONE = "nl_NL.UTF-8";
    LC_TIME = "en_DK.UTF-8";
  };

  i18n.supportedLocales =
    [ "en_GB.UTF-8/UTF-8" "nl_NL.UTF-8/UTF-8" "en_DK.UTF-8/UTF-8" ];

  xdg.portal = {
    enable = true;
    wlr.enable = true;
  };

  services.udisks2.enable = true;
  services.dbus.enable = true;

  # Hyprland
  programs.hyprland = {
    enable = true;
    package = null; # Managed by home manager
  };

  environment.loginShellInit = ''
    if [ -z $DISPLAY ] && [ "$(tty)" = "/dev/tty1" ]; then
      ${run-hyprland}/bin/run-hyprland
    fi
  '';

  services.xserver = {
    enable = false;
    layout = "us";
    xkbVariant = "altgr-intl";
    xkbOptions = "caps:swapescape";
    videoDrivers = [ "nvidia" ];
  };

  hardware.nvidia.prime = {
    offload.enable = true;
    intelBusId = "PCI:0:2:0";
    nvidiaBusId = "PCI:1:0:0";
  };

  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      vaapiVdpau
      intel-media-driver # LIBVA_DRIVER_NAME=iHD
      vaapiIntel # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
      libvdpau-va-gl
    ];
  };

  hardware.bluetooth.enable = true;
  services.blueman.enable = true;

  virtualisation.podman.enable = true;

  hardware.saleae-logic.enable = true;

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound with pipewire.
  sound.enable = true;
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.enable = true;
  };

  environment.systemPackages = with pkgs; [
    pciutils
    nvidia-offload
    run-hyprland
    wireguard-tools
    slurp
    gdb

    swaylock-effects # Has to be installed globally so that pam module works
  ];

  programs.steam = {
    enable = true;
    remotePlay.openFirewall = true;
    dedicatedServer.openFirewall = true;
  };

  services.fstrim.enable = true;

  nix.extraOptions = ''
    keep-outputs = true
    keep-derivations = true
  '';

  # Enables logging in with my Solokey
  security.pam.u2f = {
    enable = true;
    debug = false;
    cue = true;
    control = "sufficient";
    authFile =
      "/etc/u2f-mappings"; # use `pamu2fcfg` from `pkgs.pam_u2f` to generate this config
  };

  programs.ssh.startAgent = true;

  # don't shutdown when power button is short-pressed
  services.logind.extraConfig = ''
    HandlePowerKey=suspend
  '';

  services.udev.packages = with pkgs; [
    android-udev-rules
    logitech-udev-rules
    qmk-udev-rules
    wooting-udev-rules
  ];

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "22.05"; # Did you read the comment?
}